Question

<?php

$lines = file('brand_list.txt');

$hi = ",";
foreach ($lines as $line) {
     $xml .=  "$line" . "$hi";
}


file_put_contents('brand-list-url.txt', $xml);

brand-list-url.txt

,Pioneer
,Kenwood
,JVC
,Sony
,Clarion

Answer 1

Because the first line of the brand_list.txt is probably a blank line and $line contains the newline.

Read the docs on file(). I’d also encourage you to look at implode().